Single Carrier Frequency Division Mulple Access (SC‐FDMA) for … · 2010-07-07 · Single...
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Single Carrier Frequency Division Mul5ple Access (SC‐FDMA) for Filter Bank Mul5carrier Communica5on Systems Chung Him (George) Yuen, Pooyan Amini, and Behrouz Farhang‐Boroujeny ECE Department, Univ of Utah E‐mail: [email protected]
Transcript of Single Carrier Frequency Division Mulple Access (SC‐FDMA) for … · 2010-07-07 · Single...
SingleCarrierFrequencyDivisionMul5pleAccess(SC‐FDMA)forFilterBankMul5carrier
Communica5onSystems
ChungHim(George)Yuen,PooyanAmini,andBehrouzFarhang‐BoroujenyECEDepartment,UnivofUtahE‐mail:[email protected]
Outline
• SC‐FDMA
• SC‐FBMC
• Numericalresults
• Conclusion
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SC‐FDMASC‐FDMA(SinglecarrierOFDM),proposedin3GPPLTE,isusedtoreducepeak‐to‐averagepowerra5o(PAPR)
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SC‐FDMA(SinglecarrierOFDM),proposedin3GPPLTE,isusedtoreducepeak‐to‐averagepowerra5o(PAPR)
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Analysisfilterbank
Synthesisfilterbank
SC‐FDMA
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SC‐FDMA
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DFT+roll‐offshaping
SC‐FDMA
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DFT+roll‐offshaping
ExpandtolengthN
SC‐FDMA
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SC‐FDMA
SC‐FBMC(SingleCarrierFBMC)
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SC‐FBMC(SingleCarrierFBMC)
DoesnotleadtoagoodPAPR
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SC‐FBMC(SingleCarrierFBMC)
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SC‐FBMC(SingleCarrierFBMC)
Becauseofthedecimatorsandexpandersaliasingoccursandleadstoanineffec5vemethodforPAPRreduc5on
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SC‐FBMC(SingleCarrierFBMC)
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SC‐FBMC(SingleCarrierFBMC)
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SC‐FBMC(SingleCarrierFBMC)
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OffsetQAMmodulator
NumericalResultsComparisonsFFTsize:512#ofusedSC:128
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NumericalResults
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SMT (or OFDM/OQAM) useso!set QAM for modulation
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ComparisonsFFTsize:512#ofusedSC:128
NumericalResults
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Conclusion
• WenotedthatSC‐FDMAisananalysis‐synthesismethodforreducingPAPRinOFDMA.
• SC‐FBMCwasintroducedanddevelopedasadualtoSC‐FDMA.
• ItwasfoundthatSC‐FBMC,ifimplementedcorrectly,canleaduptoabout4dBgainoverSC‐FDMA.
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